Rafael Bragatto Gratz escreveu: > Boa tarde pessoal, estou com um problema sério em um dos meus clientes. > > Há 300 máquinas conectadas (em torno de 2 conexões por máquina) no > servidor postgres e o servidor está com o processor a 100% de uso e > memória com 1900gb em uso e está MUITO LENTO. > > Se alguém puder me ajudar eu agradeço. > > A configuraçào do meu postgre.conf está assim: > > * > #--------------------------------------------------------------------------- > # CONNECTIONS AND AUTHENTICATION > #--------------------------------------------------------------------------- > > # - Connection Settings - > > listen_addresses = 'localhost' # what IP address(es) to > listen on; > # comma-separated list of addresses; > # defaults to 'localhost', '*' = all > # (change requires restart) > port = 5432 # (change requires restart) > max_connections = 1200 # (change requires restart) > # Note: increasing max_connections costs ~400 bytes of shared memory per > # connection slot, plus lock space (see max_locks_per_transaction). You > # might also need to raise shared_buffers to support more connections. > #superuser_reserved_connections = 3 # (change requires restart) > #unix_socket_directory = '' # (change requires restart) > #unix_socket_group = '' # (change requires restart) > #unix_socket_permissions = 0777 # octal > # (change requires restart) > #bonjour_name = '' # defaults to the computer name > # (change requires restart) > > # - Security & Authentication - > > #authentication_timeout = 1min # 1s-600s > #ssl = off # (change requires restart) > #password_encryption = on > #db_user_namespace = off > > # Kerberos > #krb_server_keyfile = '' # (change requires restart) > #krb_srvname = 'postgres' # (change requires restart) > #krb_server_hostname = '' # empty string matches any keytab entry > # (change requires restart) > #krb_caseins_users = off # (change requires restart) > > # - TCP Keepalives - > # see 'man 7 tcp' for details > > #tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds; > # 0 selects the system default > #tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds; > # 0 selects the system default > #tcp_keepalives_count = 0 # TCP_KEEPCNT; > # 0 selects the system default > > > #--------------------------------------------------------------------------- > # RESOURCE USAGE (except WAL) > #--------------------------------------------------------------------------- > > # - Memory - > > shared_buffers = 256MB # min 128kB or max_connections*16kB > # (change requires restart) > #temp_buffers = 8MB # min 800kB > #max_prepared_transactions = 5 # can be 0 or more > # (change requires restart) > # Note: increasing max_prepared_transactions costs ~600 bytes of > shared memory > # per transaction slot, plus lock space (see max_locks_per_transaction). > work_mem = 2MB # min 64kB > maintenance_work_mem = 16MB # min 1MB > #max_stack_depth = 2MB # min 100kB > > # - Free Space Map - > > max_fsm_pages = 204800 # min max_fsm_relations*16, 6 bytes each > # (change requires restart) > #max_fsm_relations = 1000 # min 100, ~70 bytes each > # (change requires restart) > > # - Kernel Resource Usage - > > #max_files_per_process = 1000 # min 25 > # (change requires restart) > #shared_preload_libraries = '' # (change requires restart) > > # - Cost-Based Vacuum Delay - > > #vacuum_cost_delay = 0 # 0-1000 milliseconds > #vacuum_cost_page_hit = 1 # 0-10000 credits > #vacuum_cost_page_miss = 10 # 0-10000 credits > #vacuum_cost_page_dirty = 20 # 0-10000 credits > #vacuum_cost_limit = 200 # 0-10000 credits > > # - Background writer - > > #bgwriter_delay = 200ms # 10-10000ms between rounds > #bgwriter_lru_percent = 1.0 # 0-100% of LRU buffers scanned/round > #bgwriter_lru_maxpages = 5 # 0-1000 buffers max written/round > #bgwriter_all_percent = 0.333 # 0-100% of all buffers scanned/round > #bgwriter_all_maxpages = 5 # 0-1000 buffers max written/round > > > #--------------------------------------------------------------------------- > # WRITE AHEAD LOG > #--------------------------------------------------------------------------- > > # - Settings - > > #fsync = on # turns forced synchronization on or off > #wal_sync_method = fsync # the default is the first option > # supported by the operating system: > # open_datasync > # fdatasync > # fsync > # fsync_writethrough > # open_sync > #full_page_writes = on # recover from partial page writes > #wal_buffers = 64kB # min 32kB > # (change requires restart) > #commit_delay = 0 # range 0-100000, in microseconds > #commit_siblings = 5 # range 1-1000 > > # - Checkpoints - > > #checkpoint_segments = 3 # in logfile segments, min 1, 16MB each > #checkpoint_timeout = 5min # range 30s-1h > #checkpoint_warning = 30s # 0 is off > > # - Archiving - > > #archive_command = '' # command to use to archive a logfile segment > #archive_timeout = 0 # force a logfile segment switch after this > # many seconds; 0 is off > > > #--------------------------------------------------------------------------- > # QUERY TUNING > #--------------------------------------------------------------------------- > > # - Planner Method Configuration - > > #enable_bitmapscan = on > #enable_hashagg = on > #enable_hashjoin = on > #enable_indexscan = on > #enable_mergejoin = on > #enable_nestloop = on > #enable_seqscan = on > #enable_sort = on > #enable_tidscan = on > > # - Planner Cost Constants - > > #seq_page_cost = 1.0 # measured on an arbitrary scale > #random_page_cost = 4.0 # same scale as above > #cpu_tuple_cost = 0.01 # same scale as above > #cpu_index_tuple_cost = 0.005 # same scale as above > #cpu_operator_cost = 0.0025 # same scale as above > #effective_cache_size = 128MB > > # - Genetic Query Optimizer - > > #geqo = on > #geqo_threshold = 12 > #geqo_effort = 5 # range 1-10 > #geqo_pool_size = 0 # selects default based on effort > #geqo_generations = 0 # selects default based on effort > #geqo_selection_bias = 2.0 # range 1.5-2.0 > > # - Other Planner Options - > > #default_statistics_target = 10 # range 1-1000 > #constraint_exclusion = off > #from_collapse_limit = 8 > #join_collapse_limit = 8 # 1 disables collapsing of explicit > # JOINs > > > > #--------------------------------------------------------------------------- > # RUNTIME STATISTICS > #--------------------------------------------------------------------------- > > # - Query/Index Statistics Collector - > > #stats_command_string = on > #update_process_title = on > > stats_start_collector = on # needed for block or row stats > # (change requires restart) > #stats_block_level = off > stats_row_level = on > #stats_reset_on_server_start = off # (change requires restart) > > > # - Statistics Monitoring - > > #log_parser_stats = off > #log_planner_stats = off > #log_executor_stats = off > #log_statement_stats = off > > > #--------------------------------------------------------------------------- > # AUTOVACUUM PARAMETERS > #--------------------------------------------------------------------------- > > autovacuum = on # enable autovacuum subprocess? > # 'on' requires stats_start_collector > # and stats_row_level to also be on > #autovacuum_naptime = 1min # time between autovacuum runs > #autovacuum_vacuum_threshold = 500 # min # of tuple updates before > # vacuum > #autovacuum_analyze_threshold = 250 # min # of tuple updates before > # analyze > #autovacuum_vacuum_scale_factor = 0.2 # fraction of rel size before > # vacuum > #autovacuum_analyze_scale_factor = 0.1 # fraction of rel size before > # analyze > #autovacuum_freeze_max_age = 200000000 # maximum XID age before > forced vacuum > # (change requires restart) > #autovacuum_vacuum_cost_delay = -1 # default vacuum cost delay for > # autovacuum, -1 means use > # vacuum_cost_delay > #autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for > # autovacuum, -1 means use > # vacuum_cost_limit > > > #--------------------------------------------------------------------------- > # CLIENT CONNECTION DEFAULTS > #--------------------------------------------------------------------------- > > # - Statement Behavior - > > #search_path = '"$user",public' # schema names > #default_tablespace = '' # a tablespace name, '' uses > # the default > #check_function_bodies = on > #default_transaction_isolation = 'read committed' > #default_transaction_read_only = off > #statement_timeout = 0 # 0 is disabled > #vacuum_freeze_min_age = 100000000 > > # - Locale and Formatting - > > datestyle = 'iso, dmy' > #timezone = unknown # actually, defaults to TZ > # environment setting > #timezone_abbreviations = 'Default' # select the set of available > timezone > # abbreviations. Currently, there are > # Default > # Australia > # India > # However you can also create your own > # file in share/timezonesets/. > #extra_float_digits = 0 # min -15, max 2 > #client_encoding = sql_ascii # actually, defaults to database > # encoding > > # These settings are initialized by initdb -- they might be changed > lc_messages = 'Portuguese_Brazil' # locale for system error > message > # strings > lc_monetary = 'Portuguese_Brazil' # locale for monetary > formatting > lc_numeric = 'Portuguese_Brazil' # locale for number formatting > lc_time = 'Portuguese_Brazil' # locale for time formatting > > # - Other Defaults - > > #explain_pretty_print = on > #dynamic_library_path = '$libdir' > #local_preload_libraries = '' > > > #--------------------------------------------------------------------------- > # LOCK MANAGEMENT > #--------------------------------------------------------------------------- > > #deadlock_timeout = 1s > #max_locks_per_transaction = 64 # min 10 > # (change requires restart) > # Note: each lock table slot uses ~270 bytes of shared memory, and > there are > # max_locks_per_transaction * (max_connections + > max_prepared_transactions) > # lock table slots. > > > #--------------------------------------------------------------------------- > # VERSION/PLATFORM COMPATIBILITY > #--------------------------------------------------------------------------- > > # - Previous Postgres Versions - > > #add_missing_from = off > #array_nulls = on > #backslash_quote = safe_encoding # on, off, or safe_encoding > #default_with_oids = off > #escape_string_warning = on > #standard_conforming_strings = off > #regex_flavor = advanced # advanced, extended, or basic > #sql_inheritance = on > > # - Other Platforms & Clients - > > #transform_null_equals = off > > > #--------------------------------------------------------------------------- > # CUSTOMIZED OPTIONS > #--------------------------------------------------------------------------- > > #custom_variable_classes = '' # list of custom variable class names > * > > > -- > Rafael Bragatto Gratz > > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > Projeta Sistemas Orientados Ao Seu Mundo > www.projetasistemas.com.br <http://www.projetasistemas.com.br> > > > ------------------------------------------------------------------------ > > _______________________________________________ > pgbr-geral mailing list > pgbr-geral@listas.postgresql.org.br > https://listas.postgresql.org.br/cgi-bin/mailman/listinfo/pgbr-geral > Qual a configuração do hardware?
-- Cordialmente; Aluisio Gouveia _______________________________________________ pgbr-geral mailing list pgbr-geral@listas.postgresql.org.br https://listas.postgresql.org.br/cgi-bin/mailman/listinfo/pgbr-geral
